Merge branch 'create-client-daemon' into 'master'

Create client daemon

See merge request saburly/kiviscrapworker!1

.gitignore

@@ -0,0 +1,4 @@
+*.log
+*.pid
+
+.env

README.md

@@ -1,3 +1,7 @@
 # kiviscrapworker
 
 Kivi scraping worker
+
+## Setup
+
+Copy `example.env` to the `.env` and set desired values

example.env

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+# Check default values in kiviscraplib/config/config.go
+
+CLIENT_CONNECTIONS_COUNT = Number of connections to initiate when client worker daemon starts
+CLIENT_CONNECTION_TIMEOUT = Number of seconds to wait before trying to connect to the worker server again
+WORKER_SERVER_ADDRESS = Address in form of IP:PORT (127.0.0.1:1338)
+REQUEST_MESSAGE_PREFIX = Prefix that worker server adds to the request message when sending to the worker client. Use double quotes if prefix has a space (eg. "URL ")
+PROXY_LIST_BASE_URL = Base url where proxy list can be fetched. Proxy type(https, socks5) will be concatenated to this URL

main.go

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+package main
+
+import (
+	"github.com/sevlyar/go-daemon"
+	"gitlab.com/saburly/kiviscraplib/config"
+	"gitlab.com/saburly/kiviscraplib/workerclient"
+	"log"
+)
+
+func main() {
+	config.InitClientConfig()
+
+	cntxt := &daemon.Context{
+		PidFileName: "sample.pid",
+		PidFilePerm: 0644,
+		LogFileName: "sample.log",
+		LogFilePerm: 0640,
+		WorkDir:     "./",
+		Umask:       027,
+		Args:        []string{"[kivi scraping worker client]"},
+	}
+
+	d, err := cntxt.Reborn()
+	if err != nil {
+		log.Fatal("Unable to run: ", err)
+	}
+	if d != nil {
+		return
+	}
+	// TODO: Handle error
+	defer cntxt.Release()
+
+	go workerclient.StartClientConnections()
+
+	select {} // Wait forever
+}